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  3. Mineral Resource Data System (MRDS)

Silva Group

Past Producer in Cuba with commodity Manganese
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10061219
MRDS ID TC34077
Record type Site
Current site name Silva Group
Alternate or previous names Includes Graham, Hercules, Non Plus Ultra, Fantasia, And Capricho Claims

Geographic coordinates

Geographic coordinates: -75.5283, 19.99088 (WGS84)
Location accuracy 10000(meters)
Relative position 55 KM E OF SANTIAGO DE CUBA, 15 KM N OF COAST, 7 KM S OF RAMON DE LAS YAGUAS

Site location context

Political divisions (FIPS codes)

Cuba(country)

North America(continent)

Land(continent)

Geographic areas

Country
Cuba

Comments on the location information

  • LOCATION FROM SANTOS ET AL (1988); WAS IN OLD ORIENTE PROVINCE

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Braunite Ore
Piedmontite Ore
Psilomelane Ore
Pyrolusite Ore
Calcite Gangue
Jasper Gangue

Analytical data

Result OUTCROPS 20-48% MN

Mineral occurrence model information

Model code 99
USGS model code 24c.2
Deposit model name Volcanogenic Mn, Cuban

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
    Rock unit name El Cobre Group
    Rock description El Cobre Group
    Stratigraphic age (youngest) Eocene

Nearby scientific data

(1) -75.5283, 19.99088
ListMap

Economic information

Ore body information

  • Thickness 2M
    Length 630M
    Width 45M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1887

Mining district

District name Sigua District

Comments on the production information

  • PRODUCTION FROM NONPLUS ULTRA AND GRAHAM CLAIMS.

Comments on the reserve resource information

  • RESERVES MAINLY ON NONPLUS ULTRA, FEW TENS OF THOUSAND TONS IN SIGHT ON DIP SLOPE, IF CONTINUED TO CREEK WOULD HAVE SEVERAL HUNDRED THOUSAND TONS.

Comments on the workings information

  • FEW SMALL PITS AND CROSS-CUTTING ADITS (18 TO 20M LONG).

Reference information

Bibliographic references

  • Deposit

    SANTOS, E., PENALVER, L.L., KRIVTSOV, A.I., AND TIJOMIROV, V.A., EDS., 1988, MAPA DE YACIMIENTOS MINERALES METALICOS Y AGUAS MINERALES DE LA REPUBLICA DE CUBA: MINISTERIO DE LA INDUSTRIA BASICA, 1:500,000 SCALE, 5 SHEETS.

  • Deposit

    SIMONS, F.S., AND STRACZEK, J.A., 1958, GEOLOGY OF THE MANGANESE DEPOSITS OF CUBA: U.S. GEOLOGICAL SURVEY BULLETIN 1057, P. 261-264.

  • Other Database

    CIMRI

  • Production

    SIMONS AND STRACZEK (1958)

  • Reserve-Resource

    SIMONS AND STRACZEK (1958).

General comments

Subject category Comment text
Deposit THICKNESS FRON 0.15 TO 2 METERS. ORE BEDS FORM DIP SLOPE, AVERAGE THICKNESS 1 M.
Deposit Discovery Year: LATE 1880'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1992 Page, Norman J. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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